January 2019
Beginner
400 pages
10h 21m
English
Content preview from Algebra II For Dummies, 2nd Edition
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Chapter 12
Solving Systems of Linear Equations
IN THIS CHAPTER
Processing the possible solutions of a linear system of equations
Transferring linear equations to graph paper
Breaking down and substituting systems of two equations
Handling systems of three or more linear equations
Recognizing linear systems in the real world
Decomposing fractions
A system of equations consists of a number of equations with shared variables — variables that are linked in a specific way. The solution of a system of equations uncovers these links in one of two ways: with a list of numbers that makes each equation in the system a true statement or a list of relationships between numbers that makes each equation in the system a true statement.
In this chapter, I cover systems of linear equations. As I explain in Chapter 2, linear equations feature variables that reach only the first degree, meaning that ...
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